Furnace-baker



UNITED STATES PATENT OFFICE.

GARDNER CHILSON, OF BOSTON, MASSACHUSETTS.

FURNACE-BAKER.

Specification of Letters Patent No. 1,627, dated J une 10, 1840.

To all whom t may concern.'

Be it known that I, GARDNER OHILsoN, of Boston, in the county of Suffolkand State of Massachusetts, have invented new and useful Improvements inBakers for Culinary and Such other Purposes to I/Vhich the Same May beApplicable.

These improvements, the principles thereof, and manner in which I havecontemplated the application of said principles, by which the same maybe distinguished from other invent-ions o-f a similar nature, togetherwith such parts, improvements or combinations, I claim as my inventionand rhold to be original and new I have herein set forth and describedwhich description taken in connection with the accompanying drawingsherein referred to composes my specification.

The object of my improvements is to accomplish at the same time, severalother culinary opera-tions, with greater facility and expedition,besides that of baking (such as boiling, &c.,) without any greaterexpenditure of fuel than is commo-nly necessary in the use of suchapparat-us. It will therefore be perceived that economy in the use offuel and expedition in performing the several operations are the usefuleffects to be attained by my improvements.

The figures of the accompanying plate of drawings represent myimprovements.

Figure 1. is a plan or top view of the baker. Fig. 2 is a verticalsection taken longitudinally through the center, Fig. 3. being ahorizontal section showing the parts in the interiors of the same.

A, A are the standards or legs which support the apparatus.

a b c (l, Figs. 2 and 3 is the tin baking apartment shaped as seen inthe drawings,

lin the interior of which are fixed the wires or rods ma b b shown bydotted lines in Fig. 3, for the support of any pan or vessel 0 which maybe placed thereon. The top, bottom, and sides of the baking apartmentare arranged at such angles with each other as to reflect the heatpowerfully to the article or articles in the pan or vessel at c.

A tin reflectingchamber a cl e f b Figs. 1 and 3, and CZ e f g 0, Fig.2, of nearly a semi-cylindrical shape is placed in front of the bakingapartment and attached to the same. Near the center of this chamber isthe furnace 0 0 (Figs. 2 and 3) formed of a perpendicular hollowcylindroid the section of which is elliptical, of course, as shownrinFigs. 1 and 3. The elliptical lshape 1s preferred on account 0f itsexposing a greater radiating surface in front and rear (with a lessquantity of fuel) than can be possibly obtained in a common cylinder thecircumference of whose section is equal to the perimeter of the ellipse.In the bottom of the furnace c o a suitable grating cl is fixed, throughwhich the draft is derived; the ashes created from the fuel droppingthrough t-he same into a proper ash box e e Fig. 2 below.

The heat radiating from all points in the surface of the furnace isconveyed in part directly to the baking pan, the other portion beingreflected to the same from the sides of the reflecting chamber and thetop and bottom of the baking apartment.

An elongated hot air chamber E E Figs. l, 2 and l is attached to the topof the furnace c c and rests on the top of the reflecting vchambers a CZe f b: This elongated chamber is divided into three apartments g Lz"-7c. Z. m. a and 0l p g Fig. 1 by thepartitions 71. it L L la lo a aFig. 2 (shown by dotted lines in Fig. 1.) communicating with each otherby means of the openings or flues f g (Figs. lv and 2). Circularapertures F, G, I-I Fig. 1, are made in the top of the chamber E Eopening into the apartments g it and lo Z and o p q in which apertures,the three boilers or other vessels lz, c' 7c Fig. 4 (in which theseveral culiniry operations are performed) are inserte It will readilybe perceived from the ar-` concentrate the heat in the center apartmenteither of the flues )i g may be closed by'` the sliding valves o poperated by the rods g r Figs. l and 2, leaving o-ne open or partiallyso, in order that the hot air and smoke may pass to one of the dischargepipes. The two discharge pipes may be united in one common pipe whichmay communicate with an open fire place or the atmosphere to conduct thesmoke, gas, &c., to the same.

J terial.

tureof the central apartment,-covers being used on the apertureswhentheboilers are .Y removed.. When the boiler over thev central aperture isremoved a circular gridiron may be placed thereon, and the' process ofbroillA ing accomplished ,-in like manner' by re` moving thebaking panACV and insertinga spit &c that of roasting may be performed. In orderthat the exterior of the baker Aand other parts may berbetterlunderstood reference may beghadto Fig.` 4c Which'is a perspect-iverepresentation of the same. The elongated hot air chamber E `E may beconstructed of sheet iron or other proper ma- I-Iaving thus described myimprovements I'Ashall now proceed to specifically point out those partswhich I consider newandclaim as my invention.

I claim- Y i a The combination of the elongated hot air chamber E E(divided into three apartments rg z/ hilf/mf who? p' g, by tvvopartitionsA K K-L L, Withfsliding valves A(o, p,"therein) 'with theelliptical or cylindrical furnace c 0, and also the combination ofthelatter `With the double reflecting baker surrounding the same, the Wholebeing'constructed and arranged substantially in the manner above setforth and described, -for the purpose of retaining andl circulating theheat throughout the apparatus and causing it to accomplishtheseveraloperations i L i GARDNER oHILsoN. Witnesses:V` I y i f R H. EDDY, y

LINCOLN, y Jr.`

